A vulnerability has been identified in Linux Kernel, which could be exploited by attackers to bypass security restrictions. This flaw is due to errors in the "ipc/shm.c" and "mm/madvise.c" files that do not properly validate shared memory permissions, which could be exploited by attackers to gain write access to read-only "tmpfs" files or shared memory via a specially crafted "madvise" call.
Credits
Vulnerability reported by Hugh Dickins
ChangeLog
2006-04-18 : Initial release
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